SU809605A1

SU809605A1 - System for multiprogramme wire broadcasting

Info

Publication number: SU809605A1
Application number: SU782684370A
Authority: SU
Inventors: Константин Павлович Васильев; Николай Иванович Апрелев; Ариадна Анатольевна Симакова; Анетта Давидовна Пахотина
Original assignee: Войсковая часть 60130
Priority date: 1978-11-14
Filing date: 1978-11-14
Publication date: 1981-02-28

Description

1one

Изобретение относитс к технике электросв зи, в частности к многопрограммному широковещанию объединенному с телефонной сеты и может быть использовано, например дл корабельного широковещани с одновременным ведением телефонных раз.говоров и передачей команд и распор жений.The invention relates to telecommunications engineering, in particular to multi-program broadcasting combined with a telephone network and can be used, for example, for ship broadcasting while maintaining telephone conversations and transmitting commands and orders.

Известно устройство многопрограммного 1роводного вещани , содержащее на передающей стороне блок управлени , подключенный ко входу блока коммутации , выходы которого через- источник многопрограммного вещани подключены к первым входам соответствующих юдул торов широковещани , выходы которых через первые фильтры верхних частот подключены ко входам искателей широковещательных передач, а также фильгры нижних частот, выходы которых подключены к другим входам блока коммутации, при этом выход генератора несущих частот подключен ко вторым входам модул торов широковещани , а на приемной стороне содержит телефонный аппарат, выход которого через фильтр ни гних частот подключен ко входу фильтра верхних частот , выход которого через демодул тор подключен ко входу электроакустического преобразовател , при этом выход генератора несущих частот подключен к другому входу демодул тора flj .A multiprogramming broadcasting device is known, comprising, on the transmitting side, a control unit connected to the input of the switching unit, whose outputs through the multiprogramming broadcast source are connected to the first inputs of the corresponding broadcast junction boxes, and the outputs through the first high-pass filters are connected to the inputs of the broadcast broadcasts, and also low-frequency filters, the outputs of which are connected to other inputs of the switching unit, while the output of the carrier frequency generator is connected to the second The inputs of the modulators of broadcasting and on the receiving side contains a telephone set whose output is connected via a low-pass filter to the input of a high-pass filter, the output of which through a demodulator is connected to the input of an electroacoustic converter, while the output of the carrier generator is connected to another input of the demodule torus flj.

Недостатком известного устройства вл етс то, что оно не может автоматически обеспечивать понижение громкости приема широковещательных передач при одновременном ведении теле0 фонных переговоров, а также не обеспечивает отключение как телефонной св зи, так и широковещани при передаче команд и распор жений.A disadvantage of the known device is that it cannot automatically lower the loudness of reception of broadcast transmissions while simultaneously conducting telephone conversations, and also does not provide for the disconnection of both telephone communication and broadcasting when transmitting commands and orders.

Цель изобретени - автоматическое The purpose of the invention is automatic

5 снижение громкости широковещательных передач при одновременном осуществлении телефонных переговоров, а также отключение телефонной св зи и широковещательных передач при передаче 5 reducing the volume of broadcast transmissions while simultaneously conducting telephone conversations, as well as switching off telephone communications and broadcasts during transmission

0 команд и распор жений.0 teams and orders.

Поставленна цель достигаетс тем, что в Систему многопрограммного проводного вещани , содержащую на передающей стороне блок управлени , The goal is achieved by the fact that in the Multiprogram wired broadcasting system, which contains on the transmitter side a control unit,

5 подключенный ко входу блока коммутации , выходы которого через источник многопрограммного вещани подключены к первым входам соответствующих модул торов широковещани , выходы которых через,первые фильтры верхних частот подключены ко входам искателей широковещательных передач, а также фильтры нижних частот, выходы которых подключены к другим входам блока коммутации, при этом выход генератор несущих частот подключен ко вторым входам модул торов широковвщани , а ца приемной стороне содержит телефошный аппарат, выход которого через фильтр нижних частот подключен ко входу фильтра верхних частот, выход которого через демодул тор подключен ко входу электроакустического преобразовател , при этом выход генератора несущих частот подключен к другому входу демодул тора, на передающей стороне введены линейные абонентские компл€ кты, каждый из которых содержит первый блок управлени , выключатели разговорного тракта, выключатель широковещани , второй блок управлени и регул тор громкости широковещани , а также модул торы командных передач, вторые фильтры верхних частот, искатели командных передач и счетчики включени программы, при этом другие выходы блока коммутации через соответствующие последовательно соединенные модул торы командных передач и вторые фильтры верхних частот подключены ко входам искателей командных передач, выходы которых соединены со входами первых блоков управлени линейных абонентных комплектов, выходы вторых блоков управлени подключены ко входам соответствующих фильтров нижних частот выход генератора несущих частот подключен к другим входам модул торов, командных передач, первый выход первого блока управлени каждого линейного абонентского комплекта подклю . чен к первому входу выключател разговорного тракта, второй выход - к первому входу выключател широковещани , а третий - к выходу выключател широковещани и ко второму входу выключател разговорного тракта, выход которого через второй блок управлени подключен к первому входу регул тора громкости широковещани , выходкоторого подключен ко второму входу выключател широковещани , при выходы искателей широковещательных передач соединены со вторыми входами регул торов громкости широковещану . лийейных абонентских комплектов , а счетчики включени программы соединены с соответствующими входами источника многопрограммного вещани . На чертеже изображена структурна электрическа схема системы дл многопрограммного проводного вещани .5 connected to the input of a switching unit whose outputs through a multi-program broadcast source are connected to the first inputs of the corresponding broadcasting modulators, whose outputs through the first high-pass filters are connected to the inputs of the broadcast seekers, and also low-pass filters whose outputs are connected to other inputs of the block switching, while the output of the carrier frequency generator is connected to the second inputs of the modulators of the broadcasting width, and the receiving side contains a telefax apparatus, the output of which through a low-pass filter is connected to an input of a high-pass filter, the output of which is connected via a demodulator to an input of an electroacoustic converter, and the output of a carrier generator is connected to a different input of a demodulator; linear subscriber sets are entered on the transmitting side, each of which contains a first block controls, conversational circuit breakers, a broadcast switch, a second control unit and a broadcast volume control, as well as command transmission modulators, second high pass filters coding, command program searchers and program switch-on counters, while other outputs of the switching unit are connected via serially connected command transmission modulators and second high-pass filters to the inputs of command program seekers whose outputs are connected to the inputs of the first control units of the linear subscriber sets, the second outputs the control units are connected to the inputs of the corresponding low-pass filters; the output of the carrier generator is connected to the other inputs of the modulators transmission, the first output of the first control unit of each linear subscriber set connect. The second output is connected to the first input of the broadcast switch, and the third is connected to the output of the broadcast switch and to the second input of the switch of the conversational path, the output of which is connected via a second control unit to the first volume control of the broadcast volume. to the second input of the broadcast switch, with the outputs of the broadcast seekers connected to the second inputs of the volume controls of the broadcast. line subscriber sets, and the program activation counters are connected to the corresponding inputs of the multi-program broadcast source. The drawing shows a structural electrical circuit of a system for multi-program wire broadcasting.

Система содержит блок 1 коммутации , блок 2 управлени , источник 3 многопрограммного вещани , модул тор 4 командных передач, модул тор 5 широковещани , генератор 6 несущих частот, фильтр 7 нижних частот, 8 и второй 9 фильтры верхних частот , линейный абонентский комплект 10, который состоит из второго 11 и первого 12 блоков управлени , выключател 13 разговорного тракта, регул тора 14 громкости широковещани t выключател 15 широковещани абонентскую линию 16, абонентское устройство 17, которое включает в себ фильтр 18 нижних частот, фильтр 19 верхних частот, телефонный аппарат 20, демодул тор 21, генератор 22 несущих частот, электроакустический преобразователь 23. Кроме того., система содержит счетчик 24 вк тючени программы, искатель 25 широковещательных цередач и искатель 26 командных передач.The system contains a switching unit 1, a control unit 2, a multi-program broadcast source 3, a command transmission modulator 4, a broadcast modulator 5, a carrier frequency generator 6, a low-pass filter 7, 8 and a second 9 high-pass filters, a linear subscriber set 10, which consists of a second 11 and first 12 control units, a talker switch 13, a broadcast volume controller 14, a broadcast switch 15, a subscriber line 16, a subscriber unit 17, which includes a low-pass filter 18, a top 19 filter ASTOT, telephone set 20, demodulator 21, carrier frequency generator 22, electro-acoustic transducer 23. In addition, the system contains a program counter 24 VC, a searcher 25 for broadcast programs and a searcher 26 for command transmissions.

Система дл многопрограммного проводного вещани работает следующим образом.The system for multi-program wired broadcasting works as follows.

Claims

If it is necessary to receive one of the broadcast programs, the subscriber using the telephone set 20 through the filter 18, the switch 13 and the block 11 of the linear subscriber set 10 and the filter 7 is connected to the switching unit 1 and, having received the Ready signal, dials the number of the required broadcast program in accordance with the broadcasting schedule programs. The control unit 2 with the help of the switching unit 1 connects one of the playback paths of the source 3 of a multi-program thing: neither. At the same time, the counter 24 is turned on for this program. Counter 24 allows you to make a count in the case of subsequent requests for the inclusion of this program from other subscribers. The control unit 2, having determined the caller's number, with the help of the searcher of 25 broadcast transmissions connects to the linear subscriber set 10 of the calling subscriber through the modulator 5 and the filter 8 a required program of broadcast transmissions. Through the volume control 14 and the broadcast switch 15 of the linear subscriber set 10, the broadcast program enters the subscriber line 16. At the output of the subscriber line, the broadcast transmission is fed to the filter 19j, then demodulated by demodulator 21 and generator 22, after demodulation, electroacoustic converters 23. are reproduced. connecting the broadcast program, the switching unit 1 receives a synchronous signal and all subscriber devices are released. The broadcast program continues to arrive at the subscriber through the linear subscriber set 10. To turn off the broadcast program, the subscriber must give a signal with a hang-up dialing conditional number, after which the switching unit 1 disables the broadcast program from the subscriber. If, when receiving a broadcast, a telephone call is received to the subscriber, unit 11 is activated in the linear subscriber set and turns on regulation 14, introducing attenuation of the broadcasted reception of the subscriber to the subscriber’s conversation will occur at a reduced volume of broadcast transmissions. After the end of the negotiations, block 11 turns off the controller 14, and the broadcasting level is restored. If the subscriber listening to the broadcast program calls the station itself. To negotiate with a subscriber, block 11 and controller 14 are triggered and the broadcast level is lowered until the end of the conversation. If, during the broadcast period, the command transmission starts through the block 1 special "1 subscribers through the jraTOp 4 mode, filter 9 and the searcher 26 command transmissions, then in the linear subscriber set Yu from block 12, a switch 15 is triggered, disabling the broadcast circuits from the customer, to It is necessary to transmit a command. When a command transmission is received while the subscriber conducts telephone conversations and receives a broadcast program from block 12, the switches 13 and 15 are activated, disconnecting the broadcast and speaking circuits from the subscriber during the transmission of commands and orders. After the end of the command transmission, the broadcast and spoken circuits are restored. Introduction to the known device of the aforementioned blocks allows creating a system for multi-wired broadcasting in which one of the broadcast programs is automatically selectively activated, fixing the number of incoming requirements for each nporpsuviMy, simultaneous management telephone conversations and reception of broadcasting with a reduced volume, as well as the disconnection of the paths for conducting telephone conversations and broadcasts schani at time of receiving commands and spacers zheny. Claims for multiprogramming broadcasting comprising on the transmitter side a control unit connected "to the input of the switching unit whose outputs through the multi-programmable broadcast source are connected to the first inputs of the respective broadcast modulators whose outputs through the first high-pass filters are connected to the inputs of the broadcast finders transmissions, as well as low-pass filters, the outputs of which are connected to other inputs of the switching unit, while the output of the carrier generator is connected to the second inputs of the modulators of broadcasting, and on the receiving side contains a telephone set whose output is connected via a low-pass filter to the input of a high-pass filter, the output of which through a demodulator is connected to the input of an electroacoustic converter, while the output of the carrier generator is connected to another input of a demodule torus, characterized in that, in order to ensure the automatic reduction of the volume of broadcast transmissions while simultaneously conducting telephone conversations, as well as telephone and broadcast transmissions when transmitting commands and orders, on the transmitting side linear subscriber sets are entered into it, of which KaxfftaA contains, the first control unit, the talker switches, the broadcast switch, the second control unit and the broadcast volume control, as well as command transmission modulators, second high-pass filters, command search searchers and program switch-on counters, with the other outputs of the switching unit through the respective series-connected the command transmission modulators and the second high-pass filters are connected to the inputs of the command-program seekers whose output is connected to the inputs of the first control units of the linear subscriber sets, the outputs of the second control blocks are connected to the inputs of the corresponding low-pass filters, the output of the carrier generator is connected to other inputs of the module command transfers, the first output of the first control unit of each linear subscriber set is connected to the first input of the conversational circuit switch, the second The output to the first input of the switch is wide, and the third is to the output of the broadcast switch and to the second input, the switch of the conversational path, the output of which is connected through the second control unit to the first input of the broadcast volume regulator, the output of which is connected to the second input of the switch, the outputs of the searchers of the Broadcast Htjx transmissions are connected to the second inputs of the broadcast volume controllers of the linear subscriber sets, and the program activation counters are connected to the corresponding and a source of multi-input light situations. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 459860, cl. H 04 H 1/04, 1969 (prototype),